Extended gamma-ray emission from Coy Dark Matter

Bœhm, Celine; Dolan, Matthew J.; McCabe, Christopher; Spannowsky, Michael

doi:10.1088/1475-7516/2014/05/009

Extended gamma-ray emission from Coy Dark Matter

Bœhm, Celine; Dolan, Matthew J.; McCabe, Christopher; Spannowsky, Michael

Authors

Celine Bœhm

Matthew J. Dolan

Christopher McCabe

Professor Michael Spannowsky michael.spannowsky@durham.ac.uk
Director

Abstract

We show that it is possible for WIMP dark matter to produce a large signal in indirect dark matter searches without producing signals elsewhere. We illustrate our point by fitting the Fermi-LAT extended galactic gamma-ray excess with a simple model of Dirac dark matter that annihilates primarily into b quarks via a pseudoscalar. Current collider constraints are weak while the 14 TeV LHC run will constrain a limited portion of the parameter space. No signal is expected in additional indirect searches or at future direct detection experiments. Our results emphasise the importance of fully understanding potential indirect signals of dark matter as they may provide the only information about the dark matter particle.

Citation

Bœhm, C., Dolan, M. J., McCabe, C., & Spannowsky, M. (2014). Extended gamma-ray emission from Coy Dark Matter. Journal of Cosmology and Astroparticle Physics, 2014(05), Article 009. https://doi.org/10.1088/1475-7516/2014/05/009

Journal Article Type	Article
Acceptance Date	Apr 7, 2014
Online Publication Date	May 8, 2014
Publication Date	May 8, 2014
Deposit Date	Dec 12, 2014
Publicly Available Date	Jun 6, 2018
Journal	Journal of Cosmology and Astroparticle Physics
Publisher	IOP Publishing
Peer Reviewed	Peer Reviewed
Volume	2014
Issue	05
Article Number	009
DOI	https://doi.org/10.1088/1475-7516/2014/05/009

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